M-Nitrobenzenediazonium perchlorate

Preparation of m-Nitrobenzenediazonium Perchlorate. Half a gram of m-nitroaniline is suitpentest tube, and 0.5 cc. of concentnitetl hyperchloric acid solution arc added. After tlic nitranilinc has dissolved, 15 cc. of wafer is added ami (he solid ton is cooletl by immersing the test tube in a beaker filled with a slurry of cracked ice. One-quarter of a gram of sodium nitrite dissolved in 1 or 2 cc. of water is added in 3 or 4 portions, the mi.xture being shaken after each addition or stirred with... 

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